| Barnes' Notes on the Bible A temple had been built to Baal at Jerusalem itself by Athaliah, Ahaziah, or Jehoram. According to Josephus, it was constructed in the reign of Jehoram. Its exact position is uncertain. Images - The word used here is not the same as in 2 Kings 10:26, but a word which implies likeness. The Phoenicians had fashioned images, besides their unfashioned pillar-idols. The priest appointed ... - The temple worship having been discontinued during Athaliah's rule, it devolved on Jehoiada now to re-establish it (see marginal reference). He had already summoned the Levites out of all the cities of Judah 2 Chronicles 23:2, and had made use of them in the events of the day. He therefore proceeded at once to assign the custody of the temple to a particular course, before conducting the young king to the palace.
Clarke's Commentary on the BibleHis altars and images brake they in pieces - It is probable that Athaliah had set up the worship of Baal in Judah, as Jezebel had done in Israel; or probably it had never been removed since the days of Solomon. It was no wonder that Jehoiada began his reform with this act, when we learn from 2 Chronicles 24:7, that the sons of Athaliah, that wicked woman, had broken up the house of God; and also all the dedicated things of the house of the Lord did they bestow upon Baalim.
Gill's Exposition of the Entire BibleAnd all the people of the land,.... That were at Jerusalem, and the parts adjacent, that came from the country, hearing what was done: went into the house of Baal; a temple of his Athaliah had built, either in Jerusalem, or near it; perhaps on the mount of Olives, called the mount of corruption, 2 Kings 23:13 from the idolatry there committed: and brake it down, his altars and his images brake they in pieces thoroughly; made an entire destruction of them all, temple, altars, the images of Baal and other deities: and slew Mattan the priest of Baal before the altar; either as he was sacrificing, or that he might be a sacrifice, or where he had fled for refuge: and the priest appointed officers over the house of the Lord; priests to offer sacrifices, Levites to sing the praises of God, porters at the door of the temple, and watches in it, and restored the courses of the priests, and everything to its proper order, which had been neglected, or had ceased, during the usurpation of Athaliah; see 2 Chronicles 23:18.
Geneva Study BibleAnd all the people of the land went into the house of Baal, and brake it down; his altars and his images brake they in pieces thoroughly, and slew Mattan the priest of Baal before the {r} altars. And the {s} priest appointed officers over the house of the LORD. (r) Even in the place where he had blasphemed God, and thought to have been helped by his idol, there God poured his vengeance on him. (s) That is, Jehoiada.
King James Translators' Notesofficers: Heb. offices
Matthew Henry's Concise Commentary11:17-21 King and people would cleave most firmly to each other, when both had joined themselves to the Lord. It is well with a people, when all the changes that pass over them help to revive, strengthen, and advance the interests of religion among them. Covenants are of use, both to remind us of, and bind us to, the duties already binding on us. They immediately abolished idolatry; and, pursuant to the covenant with one another, they expressed mutual readiness to help each other. The people rejoiced, and Jerusalem was quiet. The way for people to be joyful and at peace, is to engage fully in the service of God; for the voice of joy and thanksgiving is in the dwellings of the righteous, but there is no peace for the wicked. | 
